International School Assessments

ISA Results

This is a particularly critical question for families away from home, where it is hard to know how systems, and standards, compare. The International Schools’ Assessment (ISAs) provide an external benchmark of how well students at a school achieve in  some key areas of the curriculum compared to other international schools around the world.  At St. Michael’s the ISA results provide a snapshot of how well students achieve across a much broader curriculum. We are very proud of the achievements of our young people but believe it is just as important to have well-developed personal skills such as compassion, respect and integrity as it is to be a successful mathematician.  St. Michael’s learners are renowned for being well-rounded people.



ISA Mathematics 2021


ISA Reading 2021


ISA Writing 2021

What do they show?

In all three core subjects, St. Michael’s International School has consistently exceeded the average achievement globally, when conapred to all international schools and similar international schools. In this context ‘similar’ refers to the size and demographics of a school. 

What is ISA?

International Schools’ Assessment (ISA) is an annual assessment programme that has been specially developed to measure skills in mathematical literacy, reading and writing of students in international schools. ISA is based on the internationally endorsed reading and mathematical  frameworks of the Programme for International Student Assessment (PISA) developed by the Organization for Economic Co-operation and Development (OECD).

Who uses ISA?

A growing number of international schools now use ISA, including many of the acknowledged world leaders in international education. 

How do the assessments work?

Students complete a reading literacy test, a mathematical literacy test and two writing tests, each of which stakes between 45 minutes and one hour to administer.  The tests include both multiple-choice and open-ended tasks.


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